LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2009 >> Outback Limited >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (H4SO) >> Fuel Pressure >> Inspection

Fuel Pressure: Inspection

CAUTION:
  • Before removing the fuel pressure gauge, release the fuel pressure.
  • Be careful not to spill fuel.
  • Catch the fuel from hoses using a container or cloth.
NOTE: Check or replace the fuel pump and fuel delivery line if the fuel pressure is out of the standard.
  1. Release the fuel pressure. Refer to RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel.
  2. Open the fuel filler lid, and remove the fuel filler cap.
  3. Disconnect the fuel delivery hose from the fuel damper, and connect the fuel pressure gauge.
    Fig 1: Measuring Fuel Pressure
    G05339367Courtesy of SUBARU OF AMERICA, INC.
  4. Start the engine.
  5. Measure the fuel pressure after warming up the engine.
    NOTE: The fuel pressure gauge registers 10 to 20 kPa (0.1 to 0.2 kg/cm2 , 1 to 3 psi) higher than standard values during high-altitude operations.

    Fuel pressure: 

    Standard: 338 - 348 kPa (3.4 - 3.5 kg/cm 2  , 49 - 50 psi) 

scientia non olet · About LEMON Manuals